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CVE-2018-12291

Published: 13 June 2018

The on_get_missing_events function in handlers/federation.py in Matrix Synapse before 0.31.1 has a security bug in the get_missing_events federation API where event visibility rules were not applied correctly.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
matrix-synapse
Launchpad, Ubuntu, Debian
artful Ignored
(reached end-of-life)
bionic
Released (0.24.0+dfsg-1ubuntu0.1~esm1)
cosmic Ignored
(reached end-of-life)
disco Ignored
(reached end-of-life)
eoan Ignored
(reached end-of-life)
focal Not vulnerable
(1.11.0-1)
groovy Ignored
(reached end-of-life)
hirsute Ignored
(reached end-of-life)
impish Ignored
(reached end-of-life)
jammy Not vulnerable
(1.53.0-1)
kinetic Not vulnerable
(1.64.0-3)
lunar Not vulnerable
(1.77.0-1)
trusty Does not exist

upstream Needs triage

xenial Does not exist

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N